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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2011-09-27 07:47:11 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-10-21 14:24:06 +0200 |
| commit | 792608e9c215141fa4b870b7b2a23767a1ef12f4 (patch) | |
| tree | cb781b8cec57d958fb0cdbec0807289a3b868ad8 | |
| parent | a55465dca7befd31f4ffa54508d4e2d1e701b8dc (diff) | |
crypto: Add userspace report for rng type algorithms
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/rng.c | 20 | ||||
| -rw-r--r-- | include/linux/cryptouser.h | 6 |
2 files changed, 26 insertions, 0 deletions
diff --git a/crypto/rng.c b/crypto/rng.c index 45229ae782be..feb7de00f437 100644 --- a/crypto/rng.c +++ b/crypto/rng.c @@ -21,6 +21,8 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/string.h> +#include <linux/cryptouser.h> +#include <net/netlink.h> static DEFINE_MUTEX(crypto_default_rng_lock); struct crypto_rng *crypto_default_rng; @@ -58,6 +60,23 @@ static int crypto_init_rng_ops(struct crypto_tfm *tfm, u32 type, u32 mask) return 0; } +static int crypto_rng_report(struct sk_buff *skb, struct crypto_alg *alg) +{ + struct crypto_report_rng rrng; + + snprintf(rrng.type, CRYPTO_MAX_ALG_NAME, "%s", "rng"); + + rrng.seedsize = alg->cra_rng.seedsize; + + NLA_PUT(skb, CRYPTOCFGA_REPORT_RNG, + sizeof(struct crypto_report_rng), &rrng); + + return 0; + +nla_put_failure: + return -EMSGSIZE; +} + static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg) __attribute__ ((unused)); static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg) @@ -78,6 +97,7 @@ const struct crypto_type crypto_rng_type = { #ifdef CONFIG_PROC_FS .show = crypto_rng_show, #endif + .report = crypto_rng_report, }; EXPORT_SYMBOL_GPL(crypto_rng_type); diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index c8c1dfcb7cf2..ed8a40e8fb6b 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -41,6 +41,7 @@ enum crypto_attr_type_t { CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */ CRYPTOCFGA_REPORT_AEAD, /* struct crypto_report_aead */ CRYPTOCFGA_REPORT_COMPRESS, /* struct crypto_report_comp */ + CRYPTOCFGA_REPORT_RNG, /* struct crypto_report_rng */ __CRYPTOCFGA_MAX #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1) @@ -86,3 +87,8 @@ struct crypto_report_aead { struct crypto_report_comp { char type[CRYPTO_MAX_NAME]; }; + +struct crypto_report_rng { + char type[CRYPTO_MAX_NAME]; + unsigned int seedsize; +}; |